CONNECTIONS FOR TOMORROW
From our beginnings designing motorways to implementing the most cutting-edge traffic strategies, we have been working toward a bright and successful future since 1953.
We are among the largest civil engineering companies in Slovenia. We provide consulting services, conduct studies and research, as well as plan and design in the fields of transport, the environment, hydrotechnical engineering, civil structures, and geodesy.
We excel at the entire planning process
At the company PNZ d.o.o., we are proud of our 70-year history of planning new connections. From the first motorway in the former Yugoslavia to the most cutting-edge development strategies for transport infrastructure in Slovenia, from an idea to construction: we are distinguished by our long tradition, which we are continually building upon with contemporary skills and expertise, and the integrity of our offer. This includes everything from developing traffic models and conducting traffic studies to planning in the fields of roads, railways, ports, airports, energy infrastructure, structures, hydrotechnical engineering and traffic ecology, and allows for projects to be carried out from the initial idea to the final construction. With our long-time partners, we work on successful projects in architecture, landscape architecture, spatial planning and urban planning.
Our partners include highly reputable firms such as PTV, Ineco, AF-Cityplan, SATRA, IER, UIRS, UL-FGG, UM-FGPA, UZ-GF and IJS. Over 100 experts from various fields take part in our projects depending on the needs of each project, using the most state-of-the-art engineering and programming equipment.
mio €
Total annual turnover in the last 10 years
bil. €
Total investment in planned projects in the last 10 years
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We have been providing new connections for 70 years
Vision and mission
Development of modern and innovative answers to the most challenging questions in the fields of transport and the environment, which support economic development and contribute to a good quality of life and the environment.
Providing consulting, conducting studies and research, and planning and designing in the fields of transport, the environment, hydrotechnical engineering, civil structures, and geodesy for clients at state and local level. With our expertise and decades of experience we ensure that projects are successfully completed – from the initial idea to the final construction.
Fields of work
Consulting
- Project preparation
- Terms of reference
- Reviews and revisions of project documentation
- Traffic safety assessment
Service
Studies and research
- Traffic studies
- Traffic modelling (micro, meso, macro)
- Master plans and sustainable urban mobility plans
- Preliminary studies, conceptual designs and variant studies of all traffic infrastructure types
- Traffic counts
- Surveys
- Mobility plans
- Environmental studies
- Studies of noise pollution
- Accredited procedures of noise measurements
- Economic and investment studies
- Feasibility studies
- GIS data analysis
- Visualisations
Designing
- Infrastructure
- Roads
- Railways
- Ports
- Airports
- Energy supply
- Utilities
- Other
- Structures
- Designing with BIM technology
- Planning of civil structures and buildings with static calculations
- Hydrotechnical engineering
- Geodesy
Vise
Vise
VISE - Virtual Infrastructure Simulation and Evaluation
VISE offers road section evaluation with »human in the loop« procedure already in the design phase. Real drivers test and evaluate the newly designed section in a safe, yet equally engaging environment in a driving simulator.
- Detect and avoid creating dangerous sections of road in the design stage
- Increase road capacity
- Increase safety of autonomous vehicles integration
- Saves time and money for investor / customers
- Includes the end user during the design phase
- Simulations of critical situations
- Mobile simulator allows driving evaluation anywhere and with local population
- Reduces internal and external operational costs
References
We have carried out over 100 traffic, transport-economic, and environmental studies (noise, gases):
- Izhodišča urejanja ljubljanskega avtocestnega obroča in vpadnih cest
- National traffic models of Slovenia, Croatia, and Slovakia
- Meso- and macroscopic traffic simulations for the City Municipality of Ljubljana and the Ljubljana region
- Sustainable urban mobility plans for 16 Slovenian municipalities
- Mobility plan for the City Municipality of Velenje and Šalek Primary School
- Economic feasibility of the A1-Slovenj Gradec section of the third development axis
- Evaluation of the steps taken towards the future Slovenian transport network
- Expert report for the Ljubljana railway hub within the framework of the RAILHUC project
- Preparing and conducting a survey of households regarding mobility habits of the population of Slovenia on a nationwide level
- Traffic review of the connection to the Hofer supermarket and new residential development in Domžale
- Operational noise monitoring of Slovenian motorways and major regional roads
- Noise pollution study with a proposal for noise barriers and a report on passive noise protection for the project documentation of the Koseze–Kozarje motorway section (widening to six lanes)
- Noise study with a proposal for noise barriers for the purpose of reviewing changes to the municipal planning document of the Municipality of Grosuplje for the Velika Stara Vas area
We have secured project documentation for over 100 road, railway, port, airport, and energy supply infrastructure projects:
- Motorway between the A1 in Slovenia and the A7 in Croatia
- Motorway connection from the A1 to Slovenj Gradec (third development axis)
- High-speed Venice–Ljubljana railway: Trieste–Divača section
- Maribor–Šentilj railway
- Building information modelling (BIM) of the expansion project for the Karavanke motorway tunnel
- Numerous road infrastructure projects
- Numerous railway infrastructure projects
We have secured project documentation for over 100 civil structures (viaducts, bridges, retaining walls), buildings, and hydrotechnical studies and solutions:
- Footbridge across the Kamniška Bistrica in Homec
- 4-01 overpass crossing the railway in Litija
- 4-1 ''Pasarela'' pedestrian overpass crossing the Koper–Lucija motorway
- PZ-03 retaining wall on the Koper–Lucija highway
- Container repair station at the Port of Koper
- Expansion of the Šmarje Sap motorway access and exit point: a plan for surface water drainage, water management, water supply and sewerage
- Wastewater treatment plant at the Gotenica Supply Centre
- Supply of drinking water for the coastal region and Kras
- Poljčane overpass: a hydrologic-hydraulic study, a water management plan, a water supply plan
- Expansion of the Karavanke motorway tunnel: a water supply plan
We offer assistance in organising projects, from terms of reference to reviews and revisions, from applications for the approval of design conditions and applications for building permits to acquiring operating permits.
Our clients
- Domestic
DARS d.d. (Motorway Company in the Republic of Slovenia)
Slovenian Infrastructure Agency
Ministry of Infrastructure of the Republic of Slovenia
HSE - Slovenian Power Company
HESS - Slovenian Hydroelectric Power Company
Port of Koper
Slovenian Railways
City Municipality of Celje
City Municipality of Kranj
City Municipality of Ljubljana- Show all
City Municipality of Nova Gorica
City Municipality of Slovenj Gradec
City Municipality of Velenje
Municipality of Bled
Municipality of Brežice
Municipality of Hrastnik
Municipality of Izola
Municipality of jesenice
Municipality of Lendava
Municipality of Log - Dragomer
Municipality of Postojna
Municipality of Radovljica
Municipality of Ribnica
Municipality of Sevnica
Municipality of Tolmin
Rudninis, d.o.o. (E.Leclerc)
HOFER trgovina d.o.o.
IKEA Slovenija, d.o.o.
LIDL Slovenija d.o.o.
Mercator, d.d.
Raiffeisen LEASING d.o.o.
Shell Adria Ltd.
Spar Slovenija d.o.o.
Trans Felix d.o.o.
- Foreign
Rijeka–Zagreb Motorway, Croatia
Belgrade Land Development Public Agency, Serbia
Gruppo Europeo di Interesse Economico Linea Ferroviaria Trasfontaliera Trieste – Divača, Italy
Institut IGH d.d., Croatia
Mercator-S d.o.o., Serbia
Ministry of the Sea, Transport and Infrastructure, Croatia
Ministry of Transport, Construction and Regional Development, Slovakia
City Municipality of Bad Radkersburg, Austria
City Administration for Construction Land and Investments, Novi Sad, Serbia
Velenje - Šentrupert
Publications and articles
- Objava prometnega modela, ki ga je izdelal PNZ d.o.o. v znani knjigi Fundamentals of Traffic Simulation založbe Springer
- Finance: Za projektiranje okoli tri odstotke vrednosti projekta
- Združenje za svetovalni inženiring: Od projektnega do problemskega načrtovanja družbeno, ekonomsko in okoljsko sprejemljivih rešitev
- Glas gospodarstva: Prometno ureditev obravnavajmo celostno
- Združenje za svetovalni inženiring: Svetovalni inženiring kot podporni steber celostnemu prometnemu načrtovanju na lokalni in regionalni ravni
- Prometna strategija Kako rešiti vse hujšo prometno preobremenjenost? Studio ob 17h, Radio Prvi, gost Gregor Pretnar, PNZ
- Gregor Pretnar, PNZ o železnicah v Odmevih, 28. 5. 2019 (od 11:10 dalje)
- Predstavitev pobude za ureditev ljubljanskega avtocestnega obroča in vpadnih cest
- Ureditev ljubljanske obvoznice bi nas lahko stala več kot milijardo evrov
- Podcast BIMpogovori: Gregor Kralj, PNZ
- Dnevnik: Obvoznica poka po šivih, a njena širitev bi promet le še povečala
- Dnevnik: Nesrečo pri Vrhniki občuti vsa Ljubljana
- Dnevnik: V Ljubljani zaradi prometnega hrupa najbolj trpijo Bežigrajčani
- Delo: Težko bo odpraviti prometne zablode, a se da
- Finance: Kakovostna ekipa in projekti
- Finance: Devet novih železniških postajališč v Ljubljani. So lahko vlaki kot tramvaj?
- Delo: Urbana bo določala prihodnost
- Finance: Talci ozkih interesov in diktature lastnega praga
- Gorenjski glas: Kanalizacija naravnost v vodotoke
- Ljubljanska mestna uprava načrtuje sestanek z občani ob Parmovi ulici
- Vozačem bodo ukinili še eno bližnjico
- Nadgradnja odseka železniške proge Poljčane–Slovenska Bistrica, objavljeno v publikaciji Krajšamo razdalje, TEN-T dnevi (25.–27. 4. 2018), DRSI
Contact information
Vojkova cesta 65, 1000 Ljubljana
Main administrative office
Nataša Grašič
Secretary
01 589 65 14
pnz@pnz.si
Director’s office
Andrej Jan, BSc in Civil Engineering
director
Saša Hribar
Director’s secretary
+386 1 589 65 19
sasa.hribar@pnz.si
Infrastructure
Marko Jelenc, BSc in Civil Engineering
+386 1 589 65 40
marko.jelenc@pnz.si
Traffic
mag. Gregor Pretnar, MSc in Civil Engineering
+386 1 589 65 23
gregor.pretnar@pnz.si
Noise
Miha Zupančič, BSc in Civil Engineering
+386 1 589 65 26
miha.zupancic@pnz.si
Geodesy
Gorazd Drofenik, BSc in Civil Engineering
+386 1 589 65 22
gorazd.drofenik@pnz.si
Hydrotechnical engineering
Andrej Bogataj, BSc in Civil Engineering
+386 1 589 65 16
andrej.bogataj@pnz.si
Construction
Ervin Jezovšek, BSc in Civil Engineering
+386 1 589 65 31
ervin.jezovsek@pnz.si
Tax identification number: SI15531058
Bank account number: IBAN SI56 2900 0000 1823 748 (UniCredit Banka Slovenija d.d.)
IBAN SI56 2420 1900 3328 129 (Nova KBM d.d.)
PNZ svetovanje projektiranje d.o.o.
Vojkova cesta 65, 1000 Ljubljana
pnz@pnz.si